Deck Pro® is a complete system for hidden deck fastening. Just clamp the board with the unique tool and mount the screw diagonally into the side of the board. The result is a great looking wooden deck with no visible screws. And without splinters and cracks. The tool handles boards from 85 to 150 mm and withstands 100 kg of pressure, which means that even warped boards can easily be mounted. Read more here: https://www.nktfasteners.com/hidden-d...